0G3 Voltage Regulator Tube – Cold-Cathode Gas Regulator (85V)

The 0G3 is a cold-cathode, gas-filled voltage regulator tube that holds a steady 85V reference without a heated filament.

• Tube type: Cold-cathode gas voltage regulator
• Base: 7-pin miniature
• Heater: None (cold-cathode, gas-ionization type)
• Typical use: Voltage reference/regulation in vintage radio, instrument, and amplifier power supplies

Fills the gap between the 0C2 and 0B2 in the miniature-base regulator lineup.